This paper studies the computer in teaching drawings in architecture schools. To accomplish it differences are set between expression and representation drawings and three periods are analyzed from the perspective of historical evolution of representation drawing and relationship with architects. The first period is Renaissance and we focus on the appearance of the Perspective Method. The second is the VVIII century and the development of the Projective Method. The third is the XX century and the advent of graphic computation. The information technology in architecture course must be regarded as issue for the entire institution. We conclude that the challenge for Architecture Schools is to create ways of using computer in the architectural project process. This research show that the possibilities of teaching break away with the importance given to the projective drawing and setting the three dimensional environment as the starting point for the process of architectonic creation.